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Højberg O, Canibe N, Knudsen B, Jensen BB.Højberg O, et al.Appl Environ Microbiol. 2003 Jan;69(1):408-18. doi: 10.1128/AEM.69.1.408-418.2003.Appl Environ Microbiol. 2003.PMID: 12514022Free PMC article.